If a teenager hasnot hit puberty but hainvg nipple pain, what does that mean?

Puberty on the way: The forst signo f puberty in girls particularly begins with a breast bud...A hard lump under the nipple. It can be one sided or both sided. The nipple can look swollen and be tender. Two years from this point is the typical onset of menses (a period). If a teen has not started puberty at all by 14-15 the teen should be evaluated by his/her doctor and may need further evaluation.